Circuit breakers are installed and used for safety purposes in both residential as well as commercial and industrial areas. In power distribution, we need circuit breakers at different levels. Depending on the current carrying capacity, breaking capacity and other functions, we select a suitable circuit breaker according to our needs i.e. VCB, ACB (Air Circuit Breaker), MCCB and then MCB , this is common hierarchy being followed in power distribution system.
What is MCB (Miniature Circuit Breaker) ?
- MCB stands for “Miniature Circuit Breaker”.
- Rated current under 100 amps.
- Interrupting rating of under 18,000 amps.
- Trip characteristics may not be adjusted.
- Working principle based on thermal or thermal magnetic operation.
- Suitable for low current circuits (low energy requirement), i.e. home wiring.
- Generally, used where normal current is less than 100 Amps.
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